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Calculation of displacement by taking eigenvalues into consideration
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Hi,
So I have conducted an experiment on a real steel beam and I found that maximum displacement is more than 22 depends on the position but when I run the analysis on NASTRAN I get small number only 4 mm and I know that's because the start case of non-linear analysis is not based on eigenvalues.
My question is since I can't import imperfections into analysis , How can I get a realistic calculation for displacement and other values too like stress and strain ?
I think without being able to do an accurate analysis then the software vaules are not realistic.
I attached the material curve of the material that I used and most of the settings I applied
Thank you